Ocean Sea Floor Spreading Diagram
Grab this wonderful diagram of the ocean floor for a good labeling.
Ocean sea floor spreading diagram. A device that uses sound waves to measure the distance to an object below the ocean floor. Ocean sea floor diagram and zones by sketchyelements tpt. Its accuracy is affected by the variability of the speed of sound through water. Due to this continuous seafloor spreading occurs and makes atlantic ocean floor to be connected to other continental crust making the ocean gets wider over the time.
In seafloor spreading. Why is the pacific sea floor sunk and atlantic. Its a device that reflects sound off the ocean bottom to sense water depth. Perhaps counter to expectation the oceans are deeper closer to continents and farthest from midocean ridges.
Seafloor spreading occurs along mid ocean ridgeslarge mountain ranges rising from the ocean floor. Learn vocabulary terms and more with flashcards games and other study tools. Lithosphere the crust plus the rigid upper mantle. In this newly recognized mode of seafloor spreading plate.
Subduction and sea floor spreading are processes that could alter the size and form of the ocean. During the opening of the atlantic ocean sea level was so high that a western interior seaway formed across north america from the gulf of mexico to the arctic ocean. Read the definitions below then label the seafloor spreading plate divergence diagram. During world war ii battleships and submarines carried echo sounders.
The mid atlantic ridge for instance separates the north american plate from the eurasian plate and the south american plate from the african platethe east pacific rise is a mid ocean ridge that runs through the eastern pacific ocean and separates the pacific plate from the north american. Magma molten rock withing the earths mantle. The purpose of this activity is to make a simple model that shows the evolution of oceanic crust through sea floor spreading and subduction. Seafloor spreading is the continuous process of forming new igneous rock at midocean ridges by injection of magma that forms new.
Seafloor spreading is one of the two major processes of plate tectonics the other being subduction. Model sea floor instructions. Start studying sea floor spreading 32. For instance the atlantic ocean is believed to be expanding because of its few trenches.
Seafloor spreading lessons tes teach. Since the new oceanic basins are shallower than the old oceanic basins the total capacity of the worlds ocean basins decreases during times of active sea floor spreading. The red colors are the youngest parts of the seafloor where fresh new crust is formed as lava seeps up from the deep interior of the earth at spreading ridgesas new crust forms at these spreading ridges older crust colored green in the diagram moves away from. The creation of new sea floor at mid ocean spreading centers and its destruction in subduction zones is one of the many cycles that causes the earth to experience constant change.
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